10 May
2001
10 May
'01
9:15 a.m.
The Osborne 1 also used TTL-level signals for its video.
-----Original Message-----
From: Jeff Hellige [mailto:jhellige@earthlink.net]
Sent: Thursday, May 10, 2001 3:36 PM
To: classiccmp(a)classiccmp.org
Subject: Re: Converting TTL monitor to Analog
<snip>
Looking at to references I have here, I see two monitors
right off the bat that take a TTL signal as input: both the Tandy
CM-1 and VM-1 monitors, not to mention the current crop of DVI LCD's
out there.
Jeff
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
10 May
10 May
9:42 a.m.
Yes, that was a monochrome display, though, wasn't it? It's likely that if it
did receive a TTL-compatible signal from the video circuit, it was attenuated in
the monitor interface circuitry. The Osborne used a COTS monitor and probably
wouldn't have had it customed in order to save a couple of resistors.
Dick
----- Original Message -----
From: "Feldman, Robert" <Robert_Feldman(a)jdedwards.com>
To: <classiccmp(a)classiccmp.org>
Sent: Thursday, May 10, 2001 3:15 PM
Subject: RE: Converting TTL monitor to Analog
The Osborne 1 also used TTL-level signals for its
video.
-----Original Message-----
From: Jeff Hellige [mailto:jhellige@earthlink.net]
Sent: Thursday, May 10, 2001 3:36 PM
To: classiccmp(a)classiccmp.org
Subject: Re: Converting TTL monitor to Analog
<snip>
Looking at to references I have here, I see two monitors
right off the bat that take a TTL signal as input: both the Tandy
CM-1 and VM-1 monitors, not to mention the current crop of DVI LCD's
out there.
Jeff
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
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